66726310834 has 16 divisors (see below), whose sum is σ = 101366294400. Its totient is φ = 32937628464.

The previous prime is 66726310823. The next prime is 66726310837. The reversal of 66726310834 is 43801362766.

It is not an unprimeable number, because it can be changed into a prime (66726310837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3104577 + ... + 3125995.

It is an arithmetic number, because the mean of its divisors is an integer number (6335393400).

Almost surely, 2^66726310834 is an apocalyptic number.

66726310834 is a deficient number, since it is larger than the sum of its proper divisors (34639983566).

66726310834 is a wasteful number, since it uses less digits than its factorization.

66726310834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41217.

The product of its (nonzero) digits is 870912, while the sum is 46.

The spelling of 66726310834 in words is "sixty-six billion, seven hundred twenty-six million, three hundred ten thousand, eight hundred thirty-four".